2 for £6

I'd stock up now. Every home should have a Heidi-she's the BEST youngest daughter ever, always making me laugh just when I really need it.
Today I refused to buy her a sugary drink at the pool cafe, saying I didn't have enough pennies. Her reply, as she pulled her mouth down into a frown: "Now I don't have enough happiness." She was soon cheered up when I said she could chose some library books to take home though.

Had another potential blip today - MikeFromBolton's mathematical proof that ( 1 over (root 1 plus root 2)) plus (1 over (root 2 plus root 3)) ... to (1 over (root 99 plus root 100)) equals 9. Brilliant stuff, but I'm afraid Heidi's cheekiness won. I'm sure Mike will understand!